Quote:
Originally Posted by 911-32
For control you have a button on the steering wheel that the driver operates to move the wing to low drag. You hit the button as you come on to the longest straight and hold it down until you brake. At that point of release, the wing returns to its high drag/downforce position and stays there for the rest of the lap (or until the next long straight). The default setting is high drag/downforce and the wing returns to default as soon as you take your thumb off the button.
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Fairly quiet at work today.
Instead of holding the button, one can do a latch function that will hold the wing down until you touch the brake. The brake light signal can be used to reset the latch and the wing will go back up. That way you don't need to hold the button down all the time on the straight.
With 2 relays, 3 switches, a motor with a cam that should do it.
The only think with that is that you need to remember on each lap to push the button when coming on the straight.
Here a schematic
Push button is push, relay K1 come On, K1-2 will close and relay K1 is self latching ON. push button can be release.
K1-1 close also, activating the motor after half a turn switch S1 open, motor stop, wing is down.
Brake is applied K2 come On, K2-1 normally close contact open deactivating K1, K1-1 return to normally close contact, motor is activated, after half a turn S2 open motor stop, wing is up. System ready for next activation.